Company facts
- Founded
- 2023
- Employees
- 120
- Headquarters
- United States
- CEO
- Ian Tien
About
Mattermost provides secure collaboration for technical and operational teams that work in environments with complex nation-state level security and trust requirements. We serve technology, public sector, national defense and financial services industries with customers ranging from tech giants, to the world’s largest banks, to the U.S. Department of Defense and governmental agencies around the world. Our self-hosted and cloud offerings provide team messaging, file sharing, integrations, audio and screen share, workflow automation and project management on an open source platform deployed by the world’s most secure and mission critical organizations. We co-build the future of collaboration with over 4,000 open source project contributors who’ve provided over 30,000 code improvements towards our shared product vision, which is translated into 20 languages.
Open positions
GRC Manager
Own and modernize Mattermost’s compliance programs (CMMC, NIST, ISO 27001, SOC 2) using GRC engineering, automation, and AI to reduce manual effort and scale federal and commercial certifications.
Senior Technical Account Manager (Federal)
Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in…
Senior Full Stack Engineer
Build and scale Mattermost's secure web platform for defense and critical infrastructure using Go, React/TypeScript, PostgreSQL, and Redis while driving AI-forward engineering practices.
Account Manager - Federal
Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in…
Staff Full Stack Engineer
The Staff Full Stack Engineer will lead technical architecture and strategy for Mattermost's core platform, utilizing Go, React, and AI-agentic workflows to support secure collaboration for defense and critical infrastructure clients.